TC9-1-75+

Product Overview

TC9-1-75+ targets broadband RF and IF interfaces from 0.3 MHz to 475 MHz, using a 1:9 (8 Ω balanced / 75 Ω unbalanced) transformer relationship rather than a narrow tuned network. The 1:9 (8 Ω balanced / 75 Ω unbalanced) ratio lets a conventional 75 Ω system interface drive or receive a differential port with the intended impedance transformation. Confirmed selection limits include insertion loss of 3 dB maximum, return loss of 7.44 dB minimum.

The usable range crosses IF, HF, VHF and much of the UHF spectrum, which suits broadband equipment that cannot be served by a narrow tuned balun. This ordering code uses the standard mechanical option for the family and should be laid out with short, symmetric balanced traces. The installed result also requires the published land pattern and electrically symmetrical balanced connections.

Key Features

• Manufacturer: Mini-Circuits
• Part Number: TC9-1-75+
• Product Category: RF Balun / RF Transformer
• Device Type: 75 Ω high-ratio core-and-wire RF balun transformer
• Frequency Range: 0.3 MHz to 475 MHz
• System / Port Impedance: 75 Ω system
• Impedance Ratio: 1:9 (8 Ω balanced / 75 Ω unbalanced)
• Insertion Loss: 3 dB maximum
• Return Loss: 7.44 dB minimum
• Package / Case: 5-SMD module
• Mounting Type: Surface mount

Applications

• CATV, broadband video and 75 Ω tuner front ends
• Push-pull amplifier and balanced mixer stages
• Broadband instrumentation, telemetry and communications hardware

Quality & Sourcing

Antrex Electronics can support sourcing of TC9-1-75+ for production, repair and shortage requirements. Incoming verification should compare the exact ordering code, frequency band, impedance relationship, package style and any center-tap or suffix-specific configuration. A part from the same transformer family should not be substituted solely because its headline bandwidth overlaps.